There is a hidden industrial gem north of Lake Balaton, near Balatonfűzfő, Hungary, and when I say hidden I mean it. Because what else do you call the bare remains of a wartime power station 30 feet deep under the ground? Luckily I got a chance to bring my camera inside the haunting corridors of this long gone… »3/09/15 7:35pm 3/09/15 7:35pm

"I remember going on the Tube trains when I was very young, and thinking 'this is amazing'. The smell, the noise — the wooden floors, the wooden escalators of the time — incredible to think that we had those," says Paul Priestman, director and co-founder of London design agency Priestmangoode. »10/22/14 7:48am 10/22/14 7:48am

When you hop into a hot air balloon, you expect to fly up. Not anymore. For the first time ever, a hot air balloon was successfully flown down and underground into the Mamet Cave in Croatia. Even better, it was a 70-year-old man who accomplished the feat, dipping down nearly 700 feet into Earth. »10/03/14 8:29pm 10/03/14 8:29pm

Every year millions of tourists flock to London to marvel at its historic buildings, parks and attractions, but if you scratch beneath London's surface, you'll reveal a dark, intimidating web of abandoned stations, military tunnels and historic catacombs. »10/03/14 6:49am 10/03/14 6:49am

In an age where every square mile of Earth's surface is so easily photographed and surveilled, to be a true explorer—to see what no human has ever seen before—one has to descend into the bowels of the Earth. Armed with high-tech lasers scanners, cavers are slowly mapping that underground world. And now they've found… »9/29/14 4:48pm 9/29/14 4:48pm

You probably don't realize it, but, at any given hour on any given day, a small yet incredibly sophisticated train armed with cameras, lasers, and ultrasound equipment is sliding around New York City's subway system inspecting the tracks. It looks a little bit like Optimus Prime, and, like the good Transformers, it's… »5/06/14 10:00am 5/06/14 10:00am

New York City's new 2nd Avenue subway line is a construction project of truly monumental scale. Decades of planning and billions of dollars have led to the near-completion of Phase 1 of the tunnel running underneath Manhattan's Upper East Side. Gizmodo was lucky enough to take a tour through a section of the caverns… »5/02/14 12:20pm 5/02/14 12:20pm

The geology of the Gulf Coast and the Great Lakes makes the land around them particularly suitable for an ugly task: hazardous waste disposal. There, hundreds of injection wells, each up to 10,000 feet deep, contain the chemical leftovers from steel mills, wastewater treatment, and more. »4/22/14 5:20pm 4/22/14 5:20pm

While the American West stumbles forward into an already dangerous drought—and it's barely even summer—Berliners are simply not using enough water. This means that the city's water table is now on the rise, and it's beginning to threaten the city's buildings from below. Some basements have already been affected. »4/13/14 5:00pm 4/13/14 5:00pm

French engineers have been experimenting with a technique that could redirect seismic energy away from structures such as cities, dams, and nuclear power plants, sparing them from damage. It involves digging large, cylindrical boreholes into the ground, forming a defensive geometry of lace-like arrays that,… »4/08/14 6:00pm 4/08/14 6:00pm

Underground, where this is no GPS and certainly no Wi-Fi, mapping caves requires a different kind of technical ingenuity. Thus, there is cave radio. To learn about the DIY world of cave radio and underground exploration, Gizmodo picked the brain of Stanley Sides, tinkerer and former president of the Cave Research… »4/03/14 12:20pm 4/03/14 12:20pm

After ten years of extremely expensive, slow, and politically messed up construction work–it is a long and sad story of government corruption and incompetence–Budapest, the Hungarian capital, got its fourth metro line today. Despite its ill-fated genesis and controversial usefulness, the Metro 4 is an amazing… »3/28/14 3:40pm 3/28/14 3:40pm

In the early, angst-filled days of the Cold War, miners starting carving the insides out of a hill between Dallas and Austin, Texas. The workers didn't know what they were building, but—at 7,000 acres—it was huge. At that point in time, it was only known as "Project 76." »2/18/14 1:20pm 2/18/14 1:20pm